Dexter Morgan awakens from a ten-week coma, and as he begins a painful recovery, he learns his son Harrison Morgan has fled to NYC, both father and son are drawn closer to confronting the darkness they've tried to escape.

The world at large believes Dexter Morgan died in a tragic boating accident, and in a way the world at large isn’t wrong. Far from the life he knew, living under a false name in the small town of Iron Lake, NY, he’s successfully tamped down his Dark Passenger for nearly 10 years. With a normal job and a Chief of Police girlfriend, it seems he’s got life under control – until his son shows up and turns his world upside down. Rattled, Dexter yields to his homicidal urges and soon finds himself on a collision course with a very dangerous local.